Generic Buna-N Square Ring [4-11/16" ID] [4-15/16" OD] (90-423-6118)

A Buna-N square ring helps create a seal at a compatible circular connection where the original design uses a square-profile seal, and this generic version is sized with a 4-11/16 inch inside diameter and 4-15/16 inch outside diameter using the 90-423-6118 reference. When a square-profile seal becomes flattened, cut, or worn, the assembly can lose the sealing support it should maintain.

The square-ring construction gives this part practical value because profile-specific seals work best when the replacement matches both the shape and dimensional footprint of the original. A properly selected square ring helps support cleaner seating and contributes to more dependable sealing performance.

This type of part is especially useful in larger circular applications where the groove is designed for a square-profile seal rather than a round O-ring. That keeps repair work more accurate and more dependable.

Installed in the proper application, this square ring helps support dependable sealing and contributes to cleaner overall system integrity.

• Buna-N square ring with 4-11/16 inch ID and 4-15/16 inch OD
• Helps support dependable sealing in square-profile applications
• Useful when exact profile and sizing matter
• Supports cleaner targeted maintenance and repair
• Improves fit accuracy and sealing confidence